Mark C. Thurmond sold $178k of TENB
Co-Chief Executive Officer at Tenable Holdings, Inc.. 5,577 shares at an average of $31.98, traded May 23, 2025, filed May 27, 2025.
Score components
- +25RoleCEO
- +12Trade size$178k at market
- 0Share of holdings soldSold 6.9% of holdings
- +15Cluster3 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m +2.1%, 3m -9.2%, 6m -18.5%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001628280-25-027972, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| May 22, 2025 | MOption exercise Common Stock | +1,162 | $0.00 | $0 | 64,595 | May 27, 2025 |
| May 22, 2025 | MOption exercise Common Stock | +2,267 | $0.00 | $0 | 66,862 | May 27, 2025 |
| May 22, 2025 | MOption exercise Common Stock | +3,713 | $0.00 | $0 | 70,575 | May 27, 2025 |
| May 22, 2025 | MOption exercise Common Stock | +4,368 | $0.00 | $0 | 74,943 | May 27, 2025 |
| May 23, 2025 | MOption exercise Common Stock | +1,363 | $0.00 | $0 | 76,306 | May 27, 2025 |
| May 23, 2025 | MOption exercise Common Stock | +3,857 | $0.00 | $0 | 80,163 | May 27, 2025 |
| May 23, 2025 | SOpen-market sale Common Stock | -5,577 | $31.98 | $178k | 75,210 | May 27, 2025 |
| May 22, 2025 | MOption exercise Performance Restricted Stock Unitsderivative | -1,162 | $0.00 | $0 | 8,140 | May 27, 2025 |
| May 22, 2025 | MOption exercise Performance Restricted Stock Unitsderivative | -2,267 | $0.00 | $0 | 24,941 | May 27, 2025 |
| May 22, 2025 | MOption exercise Restricted Stock Unitsderivative | -3,713 | $0.00 | $0 | 25,991 | May 27, 2025 |
| May 22, 2025 | MOption exercise Restricted Stock Unitsderivative | -4,368 | $0.00 | $0 | 48,048 | May 27, 2025 |
| May 23, 2025 | MOption exercise Performance Restricted Stock Unitsderivative | -1,363 | $0.00 | $0 | 4,091 | May 27, 2025 |
| May 23, 2025 | MOption exercise Restricted Stock Unitsderivative | -3,857 | $0.00 | $0 | 11,571 | May 27, 2025 |
Related signals
Other insiders at Tenable Holdings, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 53Moderate | TENBbuy Tenable Holdings, Inc. | Matthew Charles Brown Chief Financial Officer | $258k 12,000 shares | +65% | |
| 47Moderate | Tenable Holdings, Inc. | Raymond Vicks Jr. director | $100k 4,500 shares | +38% | |
| 50Moderate | Tenable Holdings, Inc. | Arthur W Coviello Jr director | $258k 12,000 shares | +30% | |
| 45Moderate | TENBsell Tenable Holdings, Inc. | A Brooke Seawell director | $2.9M 115,000 shares | -100% | |
| 0Weak | TENBsell Tenable Holdings, Inc. | Barron Anschutz other | $28k 976 shares | -2% | |
| 67Notable | Tenable Holdings, Inc. | A Brooke Seawell director | $462k 15,000 shares | -100% | |
| 46Moderate | Tenable Holdings, Inc. | A Brooke Seawell director | $139k 4,622 shares | -24% | |
| 23Weak | Tenable Holdings, Inc. | Barron Anschutz other | $20k 670 shares | -1% | |
| 50Moderate | Tenable Holdings, Inc. | Stephen A Vintz Co-Chief Executive Officer | $103k 3,464 shares | -1% | |
| 48Moderate | Tenable Holdings, Inc. | Mark C. Thurmond Co-Chief Executive Officer | $76k 2,541 shares | -2% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.